i need help making an email button inside a table with data pulled from database



hello i have a page with table with content pulled from database. id like that for each row, there'd be a button that sends email to that user

the initial page with the form is in separate page, this is for the admin page. below is the code for the table on the admin side

this si the code for the table

<?php if(!empty($stores)): ?>
                <?php foreach($stores as $k=>$v): ?>
                <tr class='<?php echo ($k%2==0) ? 'odd':'even'; ?>'>
                    <td><?php echo $v['name']; ?></td>
                    <td><?php echo $v['address']; ?></td>

                    <td><?php echo $v['telephone']; ?></td>
                    <td><?php echo $v['email']; ?></td>
                    <td><?php echo $v['website']; ?></td>
                    <td class="acenter"><?php echo ($v['approved']) ? 'Yes' : 'No' ; ?></td>
                    <td class="actions">
                        <a href='./stores_edit.php?id=<?php echo $v['id']; ?>'><i class="icon-pencil"></i></a>
                        <a href='javascript:delItem(<?php echo $v['id']; ?>)' class="confirm_delete"><i class="icon-trash"></i></a>
                        <?php if(!$v['approved']) : ?>
                        <a href='?action=approve&&id=<?php echo $v['id']; ?>&search=<?php if(isset($_REQUEST['search'])) { echo $_REQUEST['search']; } ?><?php if(isset($_REQUEST['page'])) { echo "&page=".$_REQUEST['page']; } ?><?php if(isset($_REQUEST['sort'])) { echo "&sort=".$_REQUEST['sort']; } ?><?php if(isset($_REQUEST['filter'])) { echo "&filter=".$_REQUEST['filter']; } ?>'><?php echo $lang['ADMIN_APPROVE']; ?></a>
                        <?php endif; ?>
                        <a href= 'mail($v['email'], sprintf("subject here"), sprintf("email body here"),"From: Retailer@blablaba.com", $headers);><i class="icon-envelope"></i></a>


                <?php endforeach; ?>
            <?php else: ?>
                    <td colspan="7"><?php echo $lang['ADMIN_NO_STORES']; ?></td>
            <?php endif; ?>

so i get the mail icon to work, but when i click it the link just redirects to homepage and the URL has double slash like so


of course, no one actually got any email too. anyone have any idea?